used sigular resource for routes
added destroy action in custom domains
made instructions in 'edit/new' and 'show' visually similar
added new action and view for custom domain
moving actions for custom domain in its own controller
use separate service class for custom domains
updated help text for custom domains
increased test coverage for custom domains
About track requests:
Create migration that adds the fields submitter_id, state, and
cfp_active to Tracks
Add validations and the self_organized? method to the Track model
Create a new TracksController outide of the admin namespace
Create the relevant views for index, show, new and edit
Modify the admin views for tracks to include extra info for
self-organized tracks
About track organizers:
Create the role when a self-organized track is created
Define track organizer abilities
Modify the roles views and controller to handle the new role
The route for Roles#edit needs to have higher priority than the nested
routes for track roles, otherwise, the word edit in the url is matched
as a track with short_name edit
Also, in events#show and proposals#index
It is more relevant to check if the speakers have registered to the
conference and filled their biographies than the submitter, because,
there can be multiple speakers and the submitter isn't necessarily one
of them
And, remove admin/events/reports.html.haml, since, it isn't used anymore
Fix#1477, fix#1479
If the registration period is over then speakers of confirmed events
can't register anymore. They should be able to, since they are gonna be
there anyway.
* Allow the speakers of confirmed events to register regardless of the
registration period
* Provision for registrations of confirmed speakers, so as not to
exceed the registration limit
* Add scope for registered speakers
Fix#829 and fix#802
